{
  "annotation_id": "228a3c99-be0e-4542-881e-1e68cb454136",
  "date_created": "2026-03-02T18:02:48.239000Z",
  "date_modified": "2026-03-02T18:02:48.239000Z",
  "file_hash": "15531fbb13b382be957b45ad5fe896b80dd06e54cb2327857f3bf53295fb3744",
  "private": false,
  "record": {
    "abstract": "By realizing a quantum cryptography system based on polarization entangled\nphoton pairs we establish highly secure keys, because a single photon source is\napproximated and the inherent randomness of quantum measurements is exploited.\nWe implement a novel key distribution scheme using Wigner\u0027s inequality to test\nthe security of the quantum channel, and, alternatively, realize a variant of\nthe BB84 protocol. Our system has two completely independent users separated by\n360 m, and generates raw keys at rates of 400 - 800 bits/second with bit error\nrates arround 3 percent.",
    "arxiv_id": "quant-ph/9912117",
    "authors": [
      "Thomas Jennewein",
      "Christoph Simon",
      "Gregor Weihs",
      "Harald WeinfurterD",
      "Anton Zeilinger"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.84.4729",
    "title": "Quantum Cryptography with Entangled Photons",
    "url": "https://arxiv.org/abs/quant-ph/9912117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a0e86df9-be54-4433-8826-aad5c1b9b891",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}